A logarithmic scale is defined as one where the units on an axis are powers, or logarithms, of a base number, usually 10. It is particularly useful when we need to represent large, exponential changes in information on that axis. A semi-log chart is one in which one axis (x or y) is converted to a logarithmic scale.
Definition of âChristmas diseaseâ - English Dictionary. See all translations. uk â /ËkrÉªs.mÉs dÉªËziËz/ us â /ËkrÉªs.mÉs dÉªËziËz/ specialized. âº also haemophilia B a genetic disease in which there is not enough of a substance called factor IX in the blood, so that the person cannot stop bleeding after an injury. (Definition of âChristmas diseaseâ from the Cambridge Advanced Learner's Dictionary & Thesaurus Â© Cambridge University Press)
Leprosy. NET Glossary: an infectious disease known today as Hansen's disease, historically considered incurable and disfiguring, caused by a bacterium; in the Bible the Hebrew term traditionally translated leprosy actually describes a wide range of skin conditions other than Hansen's disease.he disease is described in the Papyrus Ebers as ukhedu (the Coptic name for leprosy is tseht). It is also mentioned in ancient Indian and Japanese history. Hippocrates calls it the Phoenician disease, and Galen names it elephantiasis..